CVE-2026-31462: drm/amdgpu: prevent immediate PASID reuse case
In the Linux kernel, the following vulnerability has been resolved:
drm/amdgpu: prevent immediate PASID reuse case
PASID resue could cause interrupt issue when process immediately runs into hw state left by previous process exited with the same PASID, it's possible that page faults are still pending in the IH ring buffer when the process exits and frees up its PASID. To prevent the case, it uses idr cyclic allocator same as kernel pid's.
(cherry picked from commit 8f1de51f49be692de137c8525106e0fce2d1912d)
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2026-31462?
CVE-2026-31462 is considered a medium severity vulnerability affecting the Linux kernel.
How do I fix CVE-2026-31462?
To fix CVE-2026-31462, update your Linux kernel to the latest version that addresses this vulnerability.
What systems are affected by CVE-2026-31462?
CVE-2026-31462 affects Linux kernel versions that utilize the amdgpu driver.
What are the potential impacts of CVE-2026-31462?
CVE-2026-31462 can lead to interrupt issues when processes reuse the same Process Address Space ID (PASID).
Is there a workaround for CVE-2026-31462 if I cannot update?
Currently, there is no known workaround for CVE-2026-31462; the best mitigation is updating the kernel.